Nagi is short in stature, she has long blond hair which is tied in two long twin tails, bangs, and she has green eyes which she inherited from her parents. According to Hayate, Nagi looks like her mother. She wears a Hakuo uniform during school, while at home she is usually seen wearing modern clothing.
When she used her alter ego Mask the Money, she wears a mask to cover her eyes and a short frilled skirt with long thigh high socks and a long sleeved blouse with a huge ribbon. During New Years, she wears a yukata with different designs on it. Nagi always wears shoes with heels just to look tall and doesn't want others to call her "short" or "small". Background and Personality.
Nagi is short-tempered, spoiled, anti-social or socially withdrawn, hates to lose and to admit her faults, has a considerably hard time confessing her true feelings towards Hayate (but does confess in the last episode of season 3) or anything in the fact of the matter, she acts immature a large portion of the time but is ultimately a good, educated girl. She is good at finance and likes to learn. Her mind is possessed with her own.
She cares for her family and friends, but she doesn't want to show her concern directly. She usually tends to show her concern with "formal words". She is a tomboy and tsundere hikkikomori princess. Since going outside is very dangerous because of her status, Nagi favors staying at home. Not liking company in general, she lives away from her grandfather in a "small" (compared to the main Sanzenin estate) mansion with minimal staff. Despite her Otaku NEET-like lifestyle, she is intelligent enough to skip 3 grades at school, which even turns out to be one of Tokyo's most prestigious academies. She has an otaku-level hobby with manga, anime and video games, and draws her own manga which is called Millennium Legend: Magical Destroy.
Her Otaku-level is high enough that she has submitted entries for multiple amateur manga competitions, though her entries never won. Her art is decent (she started drawing almost from when she was a toddler) but her sense of plot is incomprehensibly warped, not to mention her art style is odd at best.
Her genres clash and she draws a magical girl story in the style of a Shonen Manga, Magical Destroy (read: very muscular, very masculine magical girl named Britney who behaves more like a samurai ). Only her best friend, Isumi. and a wanderer ghost, Linn Regiostar. can read and understand her manga.
Because of her pampered existence, she lacks any worldly knowledge and is even incapable of looking after herself. In an episode, with the absence of both Maria and Hayate.
she was shown to be incapable of even making a cup of tea on her own, wrecking the mansion in the attempt. Nagi is mortally afraid of the dark (due to an incident with Isumi), so she shares her bed with Maria in the nights. She also doesn't like swimming. While Hayate always reminded her to go outside and gather experiences on the outside world, she always thought that that will be boring or she always lost and risk being kidnapped. Which Maria always states to her that without Hayate she will always get lost or be in danger.
Nagi likes to do what she likes to do, but mostly what she likes to do is not so good for her future. She is so hard to control, that even Maria, who has lots of talents, can't control her. But Hayate, her average educated and insensitive butler, who saved her from the kidnappers and the mafia, is able to convince her to go to school, do exercise, have many friends, etc. He helps Nagi to be a better person. He saved both her life and her lifestyle.
In short, Hayate is her savior. Sakuya Aizawa is Nagi's cousin. Sakuya is a talkative, cheerful girl. Her first encounter with Nagi was on a party when Nagi was about 4-6 years old. Sakuya saw Nagi was gloom, so she decided to talk to her.
Isumi Saginomiya is Nagi's best friend. Probably she is her best friend.
Isumi is a quiet girl, who easily gets embarrassed. She met Nagi on party that held because Yukariko's health became better when Nagi was about 5-6 years old. Nagi showed Sakuya her manga and got insulted by her. Nagi threw her manga to a trash bin. She cried and decided to stop drawing manga.
But Isumi picked it up, read it and was interested. She asked Nagi for the next chapter. Nagi was touched. Wataru Tachibana is Nagi's friend and fiancé.
Wataru is a blunt, responsible kid. He owned a DVD rental in the middle of Tokyo. His first encounter with Nagi hasn't been explained. He had many fights and argumentations with Nagi. Nagi, as Mask the Money, saves Hayate by using money.
On Christmas Eve, Nagi runs into Hayate Ayasaki. a poor 16-year-old boy who has just been given a huge debt by impossibly irresponsible parents and is on the run from the Yakuza In his desperation, Hayate tries to kidnap her for ransom and in the process declares that he "wants" her, which Nagi mistakes for a love confession. One thing leads to another and Hayate ends up rescuing Nagi from some real kidnappers. She then returns the favor by paying off Hayate's debt to the Yakuza for him and has him become the (very competent) junior butler at the Sanzenin Mansion to pay off his debt.
Hayate remains unaware that his mistress has a crush on him because of the unresolved misunderstanding. Nagi gets very jealous when Hayate swoons over Maria (her maid) or when she catches him in other suspicious situations. At other times, she spaces out in romantic/cross-dressing thoughts over Hayate and has trouble finding words during romantic moments they share. Having Hayate as the New Butler.
Two days later, after being hired by Nagi, Klaus wanted to test Hayate's ability because Klaus wanted to hire a butler for Nagi, but Nagi had already hired someone else. Nagi didn't mind. She said her imagination about Hayate. She said Hayate had many kinds of transformations, which of course, Hayate denied. That made Nagi a bit disappointed.
Klaus, Maria, and Nagi discussed about Hayate's test. Hayate doubted if he can pass it because of the way they talked about the impossible test. But Nagi cheered him up. Hayate decided to live up to Nagi's expectations. Apparently, his test was to beat a robot-maid.
Nagi examined the robot-maid, and then gave bad comments about the robot-maid. The robot-maid became angry and punched Nagi, but Hayate saved her by carrying her on his arms and jumped backward. And then the duel began. Hayate versus The robot-maid.
Hayate won by sacrificing his body. He lost his conciousness. Fortunately, he went back to normal the next day. After the test, the next day, Nagi was woken up by Hayate. Nagi blushed and scolded Hayate for being impolite by entering a girl's room when the girl is sleeping. Nagi saw Tama, her cat-indentified tiger, was sleeping beside her.
That answered Nagi's question about the warmness when she was sleeping. Hayate was surprised and told Nagi that Tama was tiger, not a cat.
But Nagi didn't listen to him, saying that Hayate talked too much about Tama. Tama was annoyed and ran after Hayate. Nagi yelled Tama to stop. She told Tama if he wanted to play, then he should play outside.
So Tama bit Hayate's clothes and carried him with him jumped to the window. Hayate smacked Tama down from the sky. Klaus who appeared suddenly challenged Hayate; if Hayate can't beat Tama, then Hayate would be fired. Klaus still doubted Hayate's ability. That made Nagi irritated, so she approved. The battle was as long until Maria appeared, she was angry that her garden was destroyed because Tama and Hayate were fighting in there.
Maria knew it was Klaus and Nagi's fault. After telling Tama's history to Hayate, she left Hayate with Tama nearby in her garden, and then went to Nagi and Klaus place. Meanwhile, after knowing Tama's history, Hayate understood Tama's condition and telling him if their fates are simillar.
But suddenly, Tama stood up and denied it. Hayate was surprised that Tama could talk. He told Nagi and the others he was surprised that Tama could talk. Nagi apologized for making him nuts.
Watching the Sun Rise. Hayate and Nagi going to the beach. At the end of the year, after reading a comic about a couple watching sunrise together, Nagi was motivated and wanted to see sunrise of the new year with Hayate at Kujukurihama beach without any interview from anybody. Nagi secrectly sneaked to his room to talk to him.
Because of that, Hayate was shocked when he took a nap on his bed, he found Nagi. Nagi said to him that she wanted to see the sun alone with him at the beach.
Hayate is confused with his Mistress request and asked for a reason, which made Nagi mad. He having no choice, Hayate followed her order. They went to the beach by a bicycle because Nagi didn't want the others to know and interview them. At the mansion, Klaus panicked because he can't find Nagi. Maria checked her room and found her manga opened. She read it and understood what had happened and calmed Klaus down. In the other place, outside is too cold for Nagi, so she change the bicycle to a yakata-guruma carriage, which made Hayate more and more confused.
They finally arrived at the beach. Hayate was very exhausted, but because he is the main hero, he'll get well sooner or later. Nagi was enjoying the beach, so Hayate asked for permission to leave to buy them coffees. She permitted him.
Hayate found a vending machine, but unfortunately, he forgot his wallet, and luckily, Maria appeared. A helicopter on the sky explained how she got there. She gave him his wallet and said happy new year to him. Hayate cheered up and went back to Nagi, but unfortunately, Nagi was sleeping. That made her missed the sunrise. Hayate brought the sleeping Nagi back to the mansion by a train.
Poor Nagi. Visiting her Grandfather. On the beginning of the year, Maria suggested that Nagi deliver her new year's greetings by visiting her grandfather's main mansion. Nagi expressed her disgust on her face as her reply.
Hayate didn't know who her grandpa is and asked Nagi about it. Nagi explained it in her way, which made her grandpa, Mikado, looked so intimidating and powerful like a tycoon of tycoons, which made Hayate afraid. When Nagi and her company (Maria, Hayate and Sakuya) arrived there, Hayate was captured as "a suspicious person with poor-looking face" by the guards. Nagi told the guards that Hayate was Himegami's replacement.
In the living room, Nagi told Hayate to leave for some fresh air because she was going to change clothes to see her grandpa. A moment later, Mikado met her and asked if she wanted the Sanzenin family inheritance or not. She refused it, but she welcomed his premature death, which made Mikado sad.
Mikado decided to inherit the Sanzenin family inheritance to the person who can make Nagi apologize in tears. Mikado got Nagi's nerve. She chose death than doing such embarrassing things.
Nagi didn't want to stay any longer, so she went to call Hayate. When she met him, Hayate was fighting against a person, Gilbert. Gilbert asked her tear-filled apology.
Nagi refused even he begged her. Having no choice, Gilbert attacked Hayate with a sword because Mikado told him if Nagi would start to cry if he hurts Hayate. Hayate evaded it. Nagi surprised. She warned Gilbert not to harm Hayate, yet Gilbert was still attacking Hayate, but Hayate evaded all of them. Hayate fought back by kicking him right in his face. One hit and Gilbert was knocked out.
At that time, Hayate was determined that his current life was to protect Nagi. He asked Nagi for her approval. Nagi misunderstood that request as a proposal, which made her blushed and steamed. Nagi gladly accepted it and thanked him. Going to the Theme Park.
Nagi's only surviving family is her grandfather, Mikado Sanzenin. who made a theme park with most of the rides are for 140 cm or higher as a present for her birthday which she greatly dislikes. The author wrote that her parents died due to an incident on her biography in Volume 1, but she said that her mother died from a disease and her father died when she was too young to remember him.
She regards her maid, Maria, as a mother or older sister figure, and warns Hayate not to touch Maria in any indecent way or dying will be the least of his worries. She has a white pet tiger, Tama.
whom she regards as a cat & family member and a real cat, Shiranui. who is the newest family member.
Her mother, Yukariko Sanzenin. is shown in Volume 12 of the manga.
Yukariko resembles Hayate which is why Nagi is so fond of him according to Isumi's mother, Hatsuho. Nagi's grandfather, Mikado Sanzenin, decided to engage Wataru as Nagi's fiance without consulting Nagi. Both Nagi and Wataru don't want to marry each other, but the engagement can't be dissolved, unless both of them have another pair.
For example Hayate for Nagi, and Isumi. Nagi's best friend who Wataru loves, for Wataru. Sadly, Isumi doesn't have any interest in Wataru, but in Hayate, because Hayate looks like her favorite television superhero in her mind. And she thinks Wataru likes Nagi and hasn't realized the truth. In Volume 3, Nagi mistook Hayate's word about "like" and "play".
She became angry and sold Hayate, for 150,000,000 yen, to Isumi. In short, the early misunderstanding things was cleared, Isumi gave up Hayate, and Hayate went back to work for Nagi. Meeting Ayumu Nishizawa. One day, Nagi met Ayumu Nishizawa in her backyard.
That was her first time meeting Ayumu. Hayate was there as well. She asked Hayate who Ayumu is. At the same time, Ayumu asked Hayate who Nagi is.
Hayate explained them. He answered Nagi's question, " She is my former classmate from my previous highschool. " And then he answered Ayumu's question, " She is Nagi Sanzenin, she's my mistress. " Nagi and Ayumu noticed that they are rivals and began the spirit battle. Nagi summoned a dragon as her spirit and Ayumu summoned a hamster as her spirit.
Just as you can see, Ayumu's spirit, a hamster, didn't last long. The dragon ate it in a blink. Ayumu lost, but didn't give up.
She said that she'll bring a stronger hamster. Hayate was dumbfounded. He didn't know what's happening because that was a girl fight. Nagi was worried about losing him and asked him if he is going to leave.
Hayate answered her that he won't leave because he doesn't have anywhere to go. Starting from there, Nagi used "hamster" to call Ayumu. One day, she was upset and decided to go outside to calm her heart. She met Ayumu in the way and called her hamster. Ayumu definitely didn't accept it. She asked about Nagi. After hearing the basic information about her, she became jealous.
Nagi left her, but Ayumu stopped her because she thought if she let her go, that means she is a complete loser. Ayumu challenged her to a karaoke contest. Knowing that it was Nagi's first time to go to a karaoke house, Ayumu thought that she is going to win easily. Ayumu first sang got a bad score, but she still optimist. In the other hand, Nagi got the perfect score. There's no way for such an extremely rich girl like Nagi will lose to a commoner in a talent competition.
She was trained by professionals singers and musicians. At the end, Nagi won, but Ayumu was still not going to give up.
Their meeting ended up with smile from both side. Taking part in the Hakuo Annual Marathon. Nagi trained for the free style marathon. Hayate went to train to Tiger's Den Butler. After she heard another girl voice when she called Hayate, she went to that place.
The day before Valentine's Day, Nagi tries to make chocolate for Hayate and skips school. After failing herself to make chocolate, she tells Hayate to make chocolate for her. On Hinagiku's birthday, Nagi gave a present to Hinagiku, and was kidnapped by Kotetsu. Nagi shocked that Hinagiku became the top spot. Nagi wakes up after her dream where she became number three spot in the Hayate the Combat Butler character rankings and Hinagiku became the top spot.
Nagi decided to take Hayate and Maria on a trip to visit a mysterious meteorite that seems to enhance growth, along with other special powers. Nagi introduces Hayate to her mother, Yukariko. Nagi decided to help the alien, Maya, to find its misplaced spaceship. Nagi and Maya find the speceship at the Saginomiya's place, where Hayate had agreed to Ginka so that he could give blood to Isumi to restore her powers.
Nagi accidentally boards on the spaceship, luckily Hayate saves her. When Maya sends Hayate and Nagi home, Hayate encounters Nagi's mother, Yukariko, in a dream and finds out the reason why Nagi comes to Shimoda every year is to remember the anniversary of her mother's death.
After that, Nagi introduces Hayate to her mother. Nagi, having woken up afternoon for all of spring break. After Hayate accidentally breaks his cellphone, Hayate and Nagi go shopping in Shinjuku to replace it, Nagi gets lost, although she vehemently denies it, and is directed to the lost child section of the electronics store. Nagi challenges the boys there to duel with the Hayate the Combat Butler Trading Card Game; she wins and tells the boys to call her "boss", after which Hayate arrives to pick her up. Taking on a Part Time Job. Nagi started part time job at Cafe Donguri (where Hayate made cookies on White Day) because she want to give a present on Hayate's birthday with her hard work, in Sakuya's birthday, Nagi and Hayate arrived, then Sakuya wanted Hayate to perform.
After seeing Sakuya play with her younger siblings and her father, Nagi leaves. Later Hayate talk to Nagi and cheer her up (with his bad joke). Then they watch some beautiful fireworks, and in the next day, Nagi got sick. she was forced to rest coming down with a fever after a day of hard work. Nagi asks Hayate to do something that makes her sleepy.
He decides to read her a distorted story of Alice's Adventures in Wonderland much to her dismay. Later, a new semester in Hakuo begins, though Nagi is still unwilling to attend. Nagi, Hayate and her new class went to Mt. Takao, after that, many things will happen. Golden Week Arc. Nagi and Athena meet in Mykonos on the last day of Golden Week. n Week, Nagi, Hayate and Maria travel to Mykonos island.
During their first 2 days, Hayate would be sent back in time to protect her from the sicilian Mafia. (Special Chapter Radical Dreamers) When he came back to the present and gave her back her sun hat, she thanked him and made him promise to protect her in the future. At Mykonos, they also came across the student council trio who decided to accompany them on their holiday. On their trip to Athens, they came across Hinagiku and Ayumu, resulting in everybody going out together and spending their golden week together. During Hayate's struggle to make a choice whether to destroy the King's Jewel to save Athena, Nagi sensed Hayate's dilema and decided to destroy the king's jewel out of her own accord so that Hayate could now protect her truly, and not her fortune.
After Hayate and Athena part ways, she came across Athena on the last day of Golden week. While Athena returned her sun hat to her out of gratitude, she said she might not do so the next time. (Implying she would not let Hayate go again). Athena then gives her the empty ring box that Hayate gave her 10 years ago. Moving out of the Sanzenin Mansion. After coming back from golden week trip, Nagi was forced to leave her mansion due to her forfeiting her inheritance after she destroyed the King's Jewel.
She orders Hayate to find a new house with 20 million yen. Later Nagi, Hayate, and Maria stayed at the Violet Mansion and started new life. Nagi prepared a plan to get money first with rent from the Violet Mansion (with butler service), she got a first tenant (Chiharu) because her house was burned by her parents. The second plan: Nagi trying to sell her Doujinshi to the public.
Nagi went to show her hard work to Ashibashi sensei but was shocked to realize her hard work was not good enough. Later Chiharu tried to cheer her up by taking her to a Doujinshi covention. There Nagi got challenged by someone to sell some Doujinshi in the next convention on the 12th of June, Nagi accepted this challenge.
Nagi and Chiharu then went to see the author of the Doujinshi they sold. Later Nagi regained her spirit to draw manga again.
Nagi, while thinking about her manga theme, made Hayate crossdress again (using Ayumu's clothes). Later, she met Ruka in the Violet Mansion. They both talked and Nagi came to admire her abilities. After making a bet to sell out her doujinshi at the last convention, Nagi gets help from both Chiharu and Hayate in coming out with ideas to create her own Doujinshi. In chapter 328, Hayate invites Ruka over to accompany Nagi in drawing her own doujinshi. Before the Comisun, Nagi requested Chiharu to print out 1000 copies of her doujinshi while simultaneously doing an online viral marketing to make sure her manga sells. However on the actual day of the Comisun, she was "defeated" when Ruka 's manga sold out within the hour and she realised everyone bought her doujinshi because they wanted the photobook of Maria, not her manga.
Realising defeat, she runs away, only to be confronted by Hayate who reasoned with her that the difference between her and Ruka was that Ruka earnestly drew her manga because she wanted anyone to be able to read it till the end. Nagi realises that somewhere along the way she digressed from her original goal of creating a good manga to just wanting to sell her manga no matter what it takes. In chapter 336, Chiharu takes her to the Tokyo Big Sight to cheer her up, saying she can make a comeback at the biggest doujinshi event that was to be held there 2 months from then.